What's minimum tank size for a black Arowana?

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But a 300g UK tank of 96 long and 24 deep would be 36” wide. (1364 litres not 1136 litres)

Still not suggesting it’s really big enough but that extra 6” means a 300g UK tank may have been an option.
Just highlighting that we need to know if it’s not standard USG.

I’ve fallen down a number of times on here answering a question based on my experience using UK g only to realize that the info I have given was rubbish when considered in US g.
 
Right, if you think you can keep a black arowana in a 5x2x2 instead of posting on here do some actual research, these fish get 30"+ and deserve a 8x4x2 imo better to do something close to a 10ft long tank end of
 
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